Geoegbs carette



(No Model.) 2 Sheets-Sheet I.

" G. GARETTE.

PICTURE HOLDING DISK FOR MAGIG LANTERNS. N0."3'76,.631'. Patented Jan.17, 1888.

Nv versus, Pholo-Lilhognyjler, Wnhington. 0.1; v

(No Model.) 2 Sheets-Sheet 2.

G. GARETTE. PICTURE HOLDINGDISK FOR MAGIC LANTERNS. No. 376,631.Patented Jan. 17, 1888.

tlnrrnn STATES PATENT @rrren.

GEORGES OARETTE, OF NUREMBERG, GERMANY.

PICTURE-HOLDING DISK FOR MAGJC LANTERNS.

SPECIFICATION fcgming part of Letters Patent No. 376,631, dated January17, 1888.

Application filed July 17, 1887. Serial No. 245,449.

it all whom it may concern.-

Be it known that I, Gnonons CARETTE, a subject of'the Emperor ofGermany, and aresident of Nuremberg, Germany, have in vented new anduseful Improvements Relating to Magic Lanterns, of which thefollowing'is a specification, reference being had to the ac companyingdrawings.

My invention relates to means for changing the pictures in magiclanterns.

In the magic lanterns heretofore constructed means have not beenprovided by which the easy and convenient insertion of the pictures canbe effected.

The device hereinafter described is intended to make good thisdeficiency, and has the advantage that even children can, without anyprevious training, project pictures correctly and accurately upon a wallor screen. The said device is also of great value when taking intoconsideration that in the neighborhood of the lamp everything mustremain dark. The said device comprises a revolving disk which is adaptedto receive three or more picturcs, according to the size, and which isfixed by means of a spring engaging with the notches ofa small notchedwheeljust when the axis of a picture coincides with the axis of thelens.

In the accompanying drawings, Figure l is a front view of the magiclantern. Fig. 2 is apart section through the center of the lens. Fig. 3is a section on the linear, Fig.2, showing the disk mechanism as seenfrom the rear.

Like letters of reference indicate correspond ing parts throughout thefigures.

The construction of the magic lantern does not materially differ fromthose heretofore used.

1 A designates the lantern-casing; B,the lamp; 0, the lens-tube.

In carrying my invention into practice a revolving disk, I), is carriedon an axis, (1, one

end of which is supported in the front of the lamp-casing, while theother end is carried in the bracket f, fixed below the lens-tube. Thesaid tube is cut away at c in order to enable the said disk to enter.

The revolving disk Dis provided with three or more pockets, 6 0',according to its size,

(No nr-del.)

which are formed by soldering folds upon the said disk. Into thesepockets the glass pictures, made in the usual manner, are slid, and

can be easily taken out when required. Upon the axis d, and firmlyconnected with it, is a small notched wheel, 9, having just as manynotches as there are pockets upon the revolving disk-according to thedrawings four.

A spring, 17, is adapted to engage with the notches of the small notchedwheel 9, and acts as a pawl to prevent the revolving disk D from turninguntil a force sut'ficient to overcome the force of the spring i pressesthe said spring out of engagement with the notched wheel.

Fig. 1 shows the position of the disk when the spring 71 has fallen intoone of the notches of the wheel g, and Fig. 2 shows the position of thedisk D when it has been turned so far that the spring is between twonotches.

The disk is so arranged that the center of the pockets and that of thepicture fitted therein coincide with the center ofthe lens when, as inFig. 1, the spring 6 engages with one of the notches of the smallnotched wheel 9, thus acting as a brake to hold the disk in thisposition until released, as above de scribed. A new glass picture canthen he slid in upon one of the side pockets, 6, and the picture justpresentedcau be removed from the opposite pocket, 6. For presenting anew picture it' is only necessary to turn the disk at the periphery tillthe spring 2', that is thereby lifted out, falls into the succeedingnotch, whereupon, in the manner above described, a new picture isinserted in the side pocket at e, and the picture a on the oppositeside, just exhibited, can be easily taken out.

The working of the lantern is so exceedingly simple that it can beperformed by a child, it being at the same time certain that thepictures areput in in the most accurate manner without any previousexperience, and not only in the center, but also with regard to theirdistance relatively to the lenses, so that vided in the lens-tube O. k

\Vhat I claim is- In a magic lantern, the combination of the disk 1),provided with pockets 0 e, for the reception of the pictures, thenotched wheel 9, mounted on the axis of the disk D, and the spring 7',engaging with the notches of the notched whee], substantially {18described.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

GEORGES CARETTE.

Witnesses: I

SIEGMUND Horn, LEONHARD LANG.

